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What do these maps show?
TaskTaskProduce an annotated world Produce an annotated world
map to show the location and map to show the location and distribution of earthquakes, distribution of earthquakes,
volcanoes and volcanoes and fold fold mountainsmountains
Use pages 8+9 from the AtlasUse pages 8+9 from the Atlas
You have 15 minutesYou have 15 minutes
Structure Structure You should be able toYou should be able to Describe the general distribution of fold Describe the general distribution of fold
mountains, volcanoes and earthquakes mountains, volcanoes and earthquakes Explain how this distribution is related to Explain how this distribution is related to
movements at plate boundaries. movements at plate boundaries. Understand the processes leading to the Understand the processes leading to the
formation of rift valleys and block mountains.formation of rift valleys and block mountains. Show a basic understanding of plate Show a basic understanding of plate
tectonics, describing the global pattern of tectonics, describing the global pattern of plates, their structure, and be aware of plate plates, their structure, and be aware of plate movements - plates moving away from each movements - plates moving away from each other (sea floor spreading), plates moving other (sea floor spreading), plates moving towards each other (subduction) and plates towards each other (subduction) and plates sliding past each other.sliding past each other.
The Structure of the
Earth
Crustal PlatesCrustal Plates
Types of CrustTypes of Crust
Oceanic crust that lies under the ocean, Oceanic crust that lies under the ocean, is mainly basalt and 5-7km thickis mainly basalt and 5-7km thick
Continental crust 20-50km thick and Continental crust 20-50km thick and composed mainly of granite; it makes composed mainly of granite; it makes up the large land masses – the up the large land masses – the continentscontinents
Continental crust is low density and Continental crust is low density and “floats” on top of the mantle whereas “floats” on top of the mantle whereas oceanic crust is much higher densityoceanic crust is much higher density
ConvectioConvection n
CurrentsCurrents
Destructive (Convergent) Destructive (Convergent) Plate Boundary (Margin)Plate Boundary (Margin)
subduction
Constructive Constructive (Divergent) Plate (Divergent) Plate
Boundary (Margin)Boundary (Margin)
Sea floor spreading
Cross section of the Atlantic Cross section of the Atlantic
Other Plate Boundaries - Other Plate Boundaries - CollisionCollision
India colliding with Asian subcontinent
Other Plate Boundaries - Other Plate Boundaries - ConservativeConservative
San Andreas fault California
Rift Valley and Block Rift Valley and Block MountainsMountains
The end resultThe end result
But is it all bad?But is it all bad?
TaskTask Produce an A3 summary sheet to show the Produce an A3 summary sheet to show the
4 plate boundaries (destructive, 4 plate boundaries (destructive, constructive, collision and conservative)constructive, collision and conservative)
You need a cross-sectional diagram of eachYou need a cross-sectional diagram of each
For each boundary you should;For each boundary you should; describe what is happening, describe what is happening, give a real example of a place in the world give a real example of a place in the world
where this boundary can be found,where this boundary can be found, outline the type of tectonic (volcanic and outline the type of tectonic (volcanic and
earthquake) activity linked with each earthquake) activity linked with each boundary. boundary.
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